MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains a high number of embedded links, many of which point to a redirector service known for malicious activity. The document body itself contains text that appears to be a lure, referencing 'Add json array to formdata', and also includes the malicious redirector URL. The ML classifier strongly indicated maliciousness, and the presence of a redirector URL suggests an attempt to lead the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://ttraff.com/pify?keyword=add+json+array+to+formdata
- http://files.tucumcari.org/uploads/1/3/1/4/131407691/suzet.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/7500/9696/files/factoring_quadratic_polynomials.pdf
- https://cdn.shopify.com/s/files/1/0432/3957/1616/files/rasuzetetonolalebukuxeso.pdf
- https://cdn.shopify.com/s/files/1/0428/5235/2159/files/natunofutewufotajadojiga.pdf
- https://cdn.shopify.com/s/files/1/0434/9788/1766/files/wodekalaxupupuke.pdf
- https://cdn.shopify.com/s/files/1/0437/7709/7886/files/75739954982.pdf
- https://cdn.shopify.com/s/files/1/0432/0745/8975/files/561309715.pdf
- https://cdn.shopify.com/s/files/1/0449/5107/7032/files/national_geographic_magazine_1888.pdf
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/building_plan_drawing.pdf
- https://cdn.shopify.com/s/files/1/0431/9281/1681/files/chrome_full_setup_for_pc.pdf
- https://cdn.shopify.com/s/files/1/0434/6170/5890/files/lala_ramswaroop_ramnarayan_calendar_2020_download.pdf
- https://cdn.shopify.com/s/files/1/0431/6423/7992/files/inter_milan_news_bleacher_report.pdf
- https://cdn.shopify.com/s/files/1/0438/6711/1584/files/1021081428.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006292.bin3cf14eb057b1f333d3500a45f11ce8b513f92a57e07d20cdc9a8903323e19caa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6292 | 5188 bytes |
font_01_sfnt_off0000742f.bin77729da4c6c62b89dd0b393035d081a0112adfcad5ec65ec198b4621fb28d0e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x742F | 13460 bytes |
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